In order to reduce the failure probability of rubber sealing rings in reciprocating dynamic seal, a new structure of sealing ring based on bionics was designed. The biomimetic ring has three concave ridges and convex bulges on each side which are very similar to earthworms. Bulges were circularly designed and sealing performances of the biomimetic ring in both static seal and dynamic seal were ...

Various inverse algorithms have been proposed to estimate brain electrical activities with magnetoencephalography MEG and electroencephalography EEG . To validate and compare the performances of inverse algorithms, many researchers have used artificially constructed EEG and MEG datasets. When the artificial sources are reconstructed on the cortical surface, accuracy of the source estimates has ...

Brain wave activity is known to correlate with decrements in behavioral performance as individuals enter states of fatigue, boredom, or low alertness.Many BCI technologies are adversely affected by these changes in user state, limiting their application and constraining their use to relatively short temporal epochs where behavioral performance is likely to be stable. Incorporating a passive BCI...

We show that the set of realizations of a given dimension of a max-plus linear sequence is a finite union of polyhedral sets, which can be computed from any realization of the sequence. This yields an (expensive) algorithm to solve the max-plus minimal realization problem. These results are derived from general facts on rational expressions over idempotent commutative semirings: we show more ge...

Hangzhou has launched a new performance evaluation mechanism by selecting satisfying or dissatisfying units with the features of openness and elimination systems. It announces the idea of making the citizens understand, participate and support. It also increases the comparability and impartiality and expands the scope of participation. By classifying the sub-categories, applying coefficient, in...

Most studies of managed fund performance use measures that are susceptible to bias caused by common time variation in risks and risk premia. Ferson and Schadt (1996) propose a conditional performance measure that controls for the common variation. Their results suggest that incorporating lagged public information variables that have been shown to predict stock returns, such as interest rates an...

 It is well-known fact that batch processes are gaining wider ground in chemical industries. Compared with continuous processes the control of batch processes is more difficult because physical and chemical properties of the contents, such as heat capacity, heat transfer coefficient and reaction rate vary from run to run and within runs. The control problem focuses on the temperature control o...

OBJECTIVES To determine the reliability of two field hockey specific tests: the shuttle sprint and dribble test (ShuttleSDT) and the slalom sprint and dribble test (SlalomSDT). METHODS The shuttle sprint and dribble performances of 22 young male and 12 young female field hockey players were assessed on two occasions within 4 weeks. Twenty one young female field hockey players took part in the...